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ABB dx581-s:s500, safety digital input/output module 8sdi/8sdo, 8di sil2/4di sil3,8do
ABB DX581-S 1SAP284100R0001 is an AC500-S safety digital input/output module with 8 safety inputs, 8 SIL3-capable safety outputs, 24 V DC signalling and four test pulse outputs.
£366.35
Why Choose the ABB DX581-S Safety Digital Input/Output Module?
The ABB DX581-S (1SAP284100R0001) is a safety digital input/output module for ABB AC500-S safety PLC systems, combining 8 safety digital outputs with 8 safety digital inputs in a compact S500 I/O module.
Designed for safety-related automation, the DX581-S provides 8 digital safety inputs up to SIL2 or PL d, or 4 inputs up to SIL3 or PL e, together with 8 safety digital outputs up to SIL3 or PL e. The module operates with 24 V DC signals and provides four test pulse outputs for input circuit monitoring.
With support for local or remote AC500-S I/O architectures via PROFINET and PROFIsafe, the DX581-S is suitable for applications such as emergency-stop circuits, guard monitoring, machine interlocking and safety zone control.
Key Advantages
- Combines safety digital inputs and outputs in one S500 module.
- Provides up to 8 safety outputs with SIL3 / PL e capability.
- Supports 8 inputs at SIL2 / PL d or 4 inputs at SIL3 / PL e.
- Includes four test pulse outputs for safety input circuit supervision.
- Supports 24 V DC safety signal processing with 1-wire connection.
- Integrates with AC500-S safety PLC architectures using PROFINET/PROFIsafe.
Key Features
- ABB DX581-S safety digital input/output module.
- 8 safety digital inputs, configurable for SIL2 or SIL3 operation according to application architecture.
- 8 safety digital outputs up to SIL3 / PL e.
- 24 V DC input and output signalling.
- 24 V DC transistor outputs rated at 0.5 A.
- 4 test pulse outputs for monitoring connected safety input circuits.
- PROFINET/PROFIsafe support within AC500-S safety PLC systems.
- Designed for S500 safety I/O installation with the TU582-S safety terminal unit.
Safety Digital I/O for AC500-S Automation
The DX581-S provides a combined safety I/O solution for AC500-S systems where both machine safety inputs and safety-controlled outputs are required. Its configurable input architecture allows 8 inputs to be used for SIL2 / PL d applications or 4 inputs for SIL3 / PL e applications, while the 8 safety outputs support SIL3 / PL e applications.
Four dedicated test pulse outputs support monitoring of connected input circuits, helping the safety controller detect wiring and field-device faults. The module can be integrated into local AC500-S installations or distributed safety architectures using PROFINET with PROFIsafe, making it suitable for scalable machine and process safety systems.
Typical Applications
- Emergency-stop and emergency shutdown circuits.
- Safety guard and protective-door monitoring.
- Machine interlocking and safety enable functions.
- Safety zone control and distributed machine protection.
- Safety-related actuator and output control.
- AC500-S local and remote safety I/O architectures.
Technical Specifications
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| Signal / Input Range | 24 V DC | |
|---|---|---|
| Product Series | ABB AC500-S | |
| Device Type | Safety Module | |
| Coil / Supply Voltage | 20.4–28.8 V DC | |
| Digital Inputs | 8 | |
| Digital Outputs | 8 | |
| Output Type | Transistor | |
| Signal Type / Function | Digital | |
| Number of I/O | 20 | |
| Manufacturer | ABB | |
| Type | DX581-S | |
| Product ID | 1SAP284100R0001 | |
| Product family | AC500-S | |
| Module type | S500 safety digital input/output module | |
| Safety digital inputs | 8 channels up to SIL2 / PL d, or 4 channels up to SIL3 / PL e | |
| Safety digital outputs | 8 channels up to SIL3 / PL e | |
| Input signal | 24 V DC | |
| Output signal | 24 V DC | |
| Output type | Transistor | |
| Output current | 0.5 A | |
| Test pulse outputs | 4 | |
| Connection | 1-wire | |
| Safety Integrity Level | SIL3 | |
| Performance Level | PL e | |
| Safety communication | PROFIsafe via PROFINET | |
| Maximum field cable length | Up to 1000 m | |
| Product net weight | 0.130 kg | |
| Dimensions | 62 mm depth × 76 mm height × 67.5 mm width | |
| Compatible terminal unit | TU582-S safety I/O terminal unit | |
| HS Code | 85389091 | |
| Country of Manufacture | Germany |
Frequently Asked Questions
What is the ABB DX581-S 1SAP284100R0001?
The ABB DX581-S 1SAP284100R0001 is an S500 safety digital input/output module for AC500-S safety PLC systems, providing 8 safety digital inputs and 8 safety digital outputs.
How many safety inputs does the DX581-S provide?
The DX581-S provides 8 safety digital input channels for SIL2 / PL d applications or 4 input channels for SIL3 / PL e applications, depending on the safety configuration.
How many safety outputs are available?
The module provides 8 safety digital outputs up to SIL3 / PL e, with 24 V DC transistor outputs rated at 0.5 A.
Does the DX581-S support PROFIsafe?
Yes. The DX581-S is designed for AC500-S safety PLC architectures and supports safety communication through PROFIsafe via PROFINET.
Which terminal unit is used with the DX581-S?
The DX581-S is designed for installation with the ABB TU582-S S500 safety I/O terminal unit with spring terminals.
Trusted by Industrial Automation Professionals
The ABB DX581-S combines configurable safety digital inputs and SIL3-capable safety outputs in a compact AC500-S S500 module, providing a practical solution for safety-related machine control and distributed safety I/O applications.
